Armature for magneto-electric machines.



C. A. PFANSTIEHL. v ARMATURE FOR MAGNBTO ELECTRIC MACHINES.

APPLICATION FILED 111111.18, 1910. RENEWED 1320.14, 1910.

983,308'. p 1 Patented 1111111911.

2 SHEETS*SHEET 1.

C. A. PFANSTIBHL. l ,ARMATURE POR MAGNBTO ELECTRIG MACHINES. APPLICATION HLBD Amma, 1910. BBNBWBD DB0. 14,1910.

983,308. Patented Feb. 7, 1911.

2 SHEETS-SHEET 2.

y Il gx FANSTIEIIL, OF HIGHLAND PARK, ILLINOIS, vASSIGNOR T PFANSTIEHI.

ELECTRICAL LABOR'ATRYIL 0F NORTH CHICAGO, ILLINOIS, A CQRPQRATION OF ARMATURE IGR MAGNETO-EIECTRIC MACHINES.

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.pelieaton tiled April 1B, i910, Serial No. 555,249.

Speceation of Letters Patent.

Patented Feb. 2',

Renewed December 14, 1310. Serallfo. 59?',359-

Le s

j iiiieiition relates te tlie spool typelof zi.iniet,i1.i :-s of ineenelio-electric ,machinesJ and lies for ob'biectvto provide e Simple and ef- 'ieieut structural arrangement sind coinbinm Ition of parts wherein i wire bundle type of ermzitinfe core and the respective field pieces nre connected together in u very efficient and eeeiiei'nieel mennen dl es will hereinafter more fully tippen In 'tlle accompanying drawings; Figure l, ie e persi'iectire View of an. armature en'ibodying the present invention. Fig. Q, .is e side elevation with the upper field piece in central longitudinal Section. Figs. 5l und "il, fire horizont l sections on lines .fe-0 und www. respectively. Fig. 5 is a. perspective View illustrating the ineens eini'iloyed in formii f the present armature. Figs. and 7., are side elevations of the sinne in tl'ie initial and inel positions.

Similar nun'iernls ot reference indicate like iti-.tete in the several views.

l' virl-ing to the drawings, l. represents usuel zirznetnie Jtield or pole pieces of the z isuz/tl eegnientel form in cross section and @tinged insepernted and. parallel relation Shown und 9 the cent silly arranged conneet/ineA zirineture core by which said field pieces are connected togetlielgto form a spool and i'f-iceive the usuel armature Wind- Y).

the core 2 and the adjacent peripheral por tions of the pole pieces l. The l'iigli re mice forni of electric Welding preferred as giving very eeient and economical results, and is the ineens employed in the proeese of manufacture illustrated in Figs. 5, C and 7, in WhiclM--S represente :t fixed and forked anvil forming; one of the terminals of the Welding circuit; il; the movablel weld*- ing jaw forming the other terminal' of the circuit, and 5 the pressure heed by which the movable welding jaw l is forced down upon the Work after the saine luis been brought to the proper heated condition by the electric current, and in order to complete the required Welding operation.

The described operations provide :t weld in which the outer ends .of the wires are liomogeneously merged into each other and into the outer portion of 2L pole piece, While said merger as it extends inward grows lessA and less homogeneous until zit the inner sides of the pole piece@ no merger exists. Se formed d Ver;Y strong and ellicient ern'uiture freine is provided for e, subsequent applicattion of the armature windings.

Having thus fully describt l my sain iu vention what I oleiin as new und desire to secure by Letters Patent is:-

l. An armature frame cornfjirieinel parallel pole pieces, and t1 core forined of :i bundle of wiree, the respective ends of tlie wires loeinten lionogeneously connected to euch other and to tbe out-er surface portions` of the pole pieces, subetantially as set. fortn.

2. An armature frznne comprising parallel pole pieces,.nnd :i core formed of n bundle of Wires, the respective ends of the wires being lion'iogeneously merged into each other zuid into the outer surface portions of the pole pieces, the merger grznlunlly decreesing to- .Werd the inner surface of seid pole pieces, substantially es set fortli.

Signed et Highland Perk, Ille. this 5th day'of April 1910.

CARL A. PMNSTMEHL. 

